1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2022 Amarula Solutions(India) 4 * Author: Jagan Teki <jagan@amarulasolutions.com> 5 */ 6 7 #ifndef __SAMSUNG_DSIM__ 8 #define __SAMSUNG_DSIM__ 9 10 #include <linux/gpio/consumer.h> 11 #include <linux/regulator/consumer.h> 12 13 #include <drm/drm_atomic_helper.h> 14 #include <drm/drm_bridge.h> 15 #include <drm/drm_mipi_dsi.h> 16 #include <drm/drm_of.h> 17 18 struct platform_device; 19 struct samsung_dsim; 20 21 #define DSIM_STATE_ENABLED BIT(0) 22 #define DSIM_STATE_INITIALIZED BIT(1) 23 #define DSIM_STATE_CMD_LPM BIT(2) 24 #define DSIM_STATE_VIDOUT_AVAILABLE BIT(3) 25 26 enum samsung_dsim_type { 27 DSIM_TYPE_EXYNOS3250, 28 DSIM_TYPE_EXYNOS4210, 29 DSIM_TYPE_EXYNOS5410, 30 DSIM_TYPE_EXYNOS5422, 31 DSIM_TYPE_EXYNOS5433, 32 DSIM_TYPE_IMX8MM, 33 DSIM_TYPE_IMX8MP, 34 DSIM_TYPE_COUNT, 35 }; 36 37 #define samsung_dsim_hw_is_exynos(hw) \ 38 ((hw) >= DSIM_TYPE_EXYNOS3250 && (hw) <= DSIM_TYPE_EXYNOS5433) 39 40 struct samsung_dsim_transfer { 41 struct list_head list; 42 struct completion completed; 43 int result; 44 struct mipi_dsi_packet packet; 45 u16 flags; 46 u16 tx_done; 47 48 u8 *rx_payload; 49 u16 rx_len; 50 u16 rx_done; 51 }; 52 53 struct samsung_dsim_driver_data { 54 const unsigned int *reg_ofs; 55 unsigned int plltmr_reg; 56 unsigned int has_freqband:1; 57 unsigned int has_clklane_stop:1; 58 unsigned int has_broken_fifoctrl_emptyhdr:1; 59 unsigned int num_clks; 60 unsigned int min_freq; 61 unsigned int max_freq; 62 unsigned int wait_for_reset; 63 unsigned int num_bits_resol; 64 unsigned int pll_p_offset; 65 const unsigned int *reg_values; 66 unsigned int pll_fin_min; 67 unsigned int pll_fin_max; 68 u16 m_min; 69 u16 m_max; 70 }; 71 72 struct samsung_dsim_host_ops { 73 int (*register_host)(struct samsung_dsim *dsim); 74 void (*unregister_host)(struct samsung_dsim *dsim); 75 int (*attach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device); 76 void (*detach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device); 77 irqreturn_t (*te_irq_handler)(struct samsung_dsim *dsim); 78 }; 79 80 struct samsung_dsim_plat_data { 81 enum samsung_dsim_type hw_type; 82 const struct samsung_dsim_host_ops *host_ops; 83 }; 84 85 struct samsung_dsim { 86 struct mipi_dsi_host dsi_host; 87 struct drm_bridge bridge; 88 struct drm_bridge *out_bridge; 89 struct device *dev; 90 struct drm_display_mode mode; 91 92 void __iomem *reg_base; 93 struct phy *phy; 94 struct clk **clks; 95 struct clk *pll_clk; 96 struct regulator_bulk_data supplies[2]; 97 int irq; 98 struct gpio_desc *te_gpio; 99 100 u32 pll_clk_rate; 101 u32 burst_clk_rate; 102 u32 hs_clock; 103 u32 esc_clk_rate; 104 u32 lanes; 105 u32 mode_flags; 106 u32 format; 107 108 bool swap_dn_dp_clk; 109 bool swap_dn_dp_data; 110 int state; 111 struct drm_property *brightness; 112 struct completion completed; 113 114 spinlock_t transfer_lock; /* protects transfer_list */ 115 struct list_head transfer_list; 116 117 const struct samsung_dsim_driver_data *driver_data; 118 const struct samsung_dsim_plat_data *plat_data; 119 120 void *priv; 121 }; 122 123 extern int samsung_dsim_probe(struct platform_device *pdev); 124 extern void samsung_dsim_remove(struct platform_device *pdev); 125 extern const struct dev_pm_ops samsung_dsim_pm_ops; 126 127 #endif /* __SAMSUNG_DSIM__ */ 128